1850728 has 16 divisors (see below), whose sum is σ = 3785760. Its totient is φ = 841200.

The previous prime is 1850701. The next prime is 1850749. The reversal of 1850728 is 8270581.

It is a self number, because there is not a number n which added to its sum of digits gives 1850728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10428 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (236610).

2^1850728 is an apocalyptic number.

It is an amenable number.

1850728 is an abundant number, since it is smaller than the sum of its proper divisors (1935032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1850728 is a wasteful number, since it uses less digits than its factorization.

1850728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21048 (or 21044 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1850728 is about 1360.4146426733. The cubic root of 1850728 is about 122.7762030939.

The spelling of 1850728 in words is "one million, eight hundred fifty thousand, seven hundred twenty-eight".